At a hearing at the State Court in Kempten, Bavaria, on Monday a panel of three judges attempted to persuade the family of David Gray, who died after Dr Ubani gave him an overdose of diamorphine on his first UK out-of-hours shift, to reconcile with Dr Ubani.

Mr Gray’s GP son, Stuart, was not present because he is holidaying in the US but the reconciliation bid was refused by Stuart’s brother, Rory.

Dr Gray and his brother Rory have sought to raise the profile of the case by speaking out both in the UK and Germany.

But lawyers acting for Dr Ubani are now seeking to stop Dr Gray and his brother talking to the press.

Dr Gray told GP newspaper on Thursday: ‘We had a letter from Dr Ubani’s lawyer asking us to sign a paper saying we would not go to the press, to pay his lawyer costs and pay a €25,000 fee if we breach the injunction.’

Dr Ubani is also seeking a ruling to block the brothers from coming within 200 metres of him. The pair travelled to a German medical conference earlier this year to confront him and distribute leaflets about the coroner’s verdict on how their father died.

By the time the court reconvenes, Dr Ubani’s career in Germany may be over.

He faces a fitness-to-practise hearing on 18 August where the German equivalent of the GMC plans to make him sit a written exam to test his medical skills.

Dr Ubani has indicated he will not attend. This would trigger an application to a judge to suspend his licence to practise as a cosmetic surgeon which would, in turn, disqualify him from also practising as a GP.